Series F — Fiscal Resilience · Companion to NCOS Working Paper v1.0 · ncos.world · November 2026
Intended audience: Economists, policy analysts, international tax practitioners, constitutional law scholars
Technical Note F1 addresses capital flight — the objection most likely to be pressed by serious economists and policymakers reviewing NCOS.
The working paper's existing treatment is structurally sound: the NVL Completeness Rule (E1) establishes that unregistered assets become financially inert in the U.S. system, and the International Triad (I1) deploys S17 withholding against unregistered foreign capital flows. When this note was first drafted, the paper did not yet:
These points are now reflected in the working paper (§19.1–§19.1a, including its net capital attraction paragraph); this note provides the supporting evidence and analysis.
F1 is organized accordingly. Sections F1.1 through F1.3 establish the empirical and conceptual foundation. F1.4 addresses IP as the hard case. F1.5 addresses corporate inversions. F1.6 makes the net capital attraction argument. F1.7 provides the proposed working-paper text, now incorporated in substance into §19.1–§19.1a. F1.8 provides an adversarial assessment of residual risk.
The capital flight objection to wealth-based systems rests on an implicit but critical ambiguity: whether "capital" refers to ownership claims or underlying productive assets. These are not the same, either economically or legally, and the distinction determines everything about how seriously the objection should be taken.
For most asset classes, these two forms of mobility are not equivalent, either practically or legally.
Real estate is immobile by definition. A commercial building in Chicago is physically present in the United States regardless of whether its equity is held through a Delaware LLC, a Cayman Islands trust, or a directly-owned personal account. NVL nexus attaches to the asset, not the ownership chain. The only question is attribution — which the look-through rules address.
Operating businesses have deep location dependencies. A manufacturing firm depends on its labor force, its supplier network, its customer proximity, its regulatory licenses, and its infrastructure. Redomiciling the parent holding company offshore does not move any of these. The economic value remains in the United States. The primary practical effect is tax base erosion, not productive capital migration — and NCOS's financial inertness principle addresses evasion through non-registration at the level of U.S.-nexus assets regardless of ownership structure.
Financial accounts are legally movable but economically tethered to institutional frameworks. A U.S. dollar-denominated account at a U.S. financial institution is subject to NVL coverage regardless of the account holder's residency. A foreign-held account that transacts with U.S. counterparties, invests in U.S. securities, or relies on U.S. legal infrastructure remains within NVL reach through S17 and the withholding architecture.
The practical implication is that the capital flight objection, when stated with precision, reduces to a much narrower concern: mobility of financial claims and high-net-worth individuals, not mobility of productive systems. The former is real and must be addressed. The latter is largely overstated.
The primary exception to this general rule is intellectual property, which shares characteristics with both financial capital (legally mobile, jurisdiction-assignable) and productive capital (the economic value is generated through use, not merely through ownership). IP is treated in F1.4.
The empirical record from jurisdictions that have implemented wealth taxes is more favorable to NCOS than the political discourse around capital flight suggests. The pattern across jurisdictions is consistent: wealth taxes induce mobility of individuals and financial claims; they do not, in general, induce large-scale relocation of productive systems.
France's Impôt de Solidarité sur la Fortune (ISF) was a recurring annual wealth tax applied at rates of 0.5–1.5% on net assets above approximately €800,000. It applied to French residents on worldwide assets and to non-residents on French-sited assets.
Evidence on individual mobility: Estimates of ISF-driven departures vary widely: French tax administration data recorded several hundred ISF-liable households leaving each year, while critics such as Eric Pichet argued that the cumulative capital outflow was large. Research on offshore wealth (e.g., Alstadsæter, Johannesen & Zucman 2018) indicates that avoidance through offshore structures, rather than physical migration, was the more significant channel.
Evidence on productive capital: The empirical evidence on productive capital flight from the ISF is notably weak. Studies of the ISF have found little robust evidence that it measurably reduced French business investment or employment at the macro level. Studies of avoidance under European wealth taxes — for example Alvaredo and Saez (2009) on Spain — find that revenue was substantially eroded by avoidance, framed primarily as a compliance issue rather than productive capital relocation.
Why it was repealed: The ISF's 2017 replacement with the Impôt sur la Fortune Immobilière (IFI — applying only to real estate) was driven by competitiveness narrative and political economy rather than demonstrated evidence of investment collapse. Macron's argument was primarily that the ISF penalized productive capital (by taxing business assets held by owners) — an argument about tax design, not about capital flight per se. The IFI retained real estate in the wealth tax base precisely because real estate is immobile.
Post-repeal evidence: The evaluation committee convened by France Stratégie to assess the 2018 reform reported across 2019–2023 that effects of the ISF’s abolition on productive investment were not clearly discernible, and the Institut des politiques publiques has studied the ISF’s effects on firms (IPP Reports 36 and 47). Neither body identifies a large aggregate investment response to the repeal, which suggests that productive capital had not been strongly constrained by the tax. [Research Priority — external validation required for a future version]
Sweden maintained a wealth tax from 1947 until its abolition in January 2007. At its peak, the tax applied rates of 1.5% on net wealth above approximately SEK 1.5 million.
Evidence on individual mobility: Several high-profile departures are documented, including IKEA founder Ingvar Kamprad's departure from Sweden — to Denmark in 1973 and then to Switzerland in 1976 — which Kamprad attributed in part to Sweden's tax burden. Emigration among very high-net-worth Swedes was real. Lindqvist and Östling (2010) document measurable wealth concentration responses.
Evidence on productive capital: Swedish manufacturing output, business investment, and employment patterns during the wealth tax period do not show signatures of productive capital flight. Sweden maintained a strong industrial base, high labor participation, and strong export performance throughout the wealth tax decades. The Swedish economics literature treats the behavioral responses to the wealth tax as primarily individual mobility and avoidance, not productive investment migration. The Riksbank and Swedish Fiscal Policy Council analyses from the abolition period frame the policy rationale in terms of international competitiveness and administrative complexity, not demonstrated productive capital loss.
Key structural point: Sweden's wealth tax period coincided with the development of some of its most globally successful corporations (Ericsson, Volvo, H&M, Spotify's predecessor ecosystem). This is not evidence that the wealth tax was beneficial, but it is strong evidence that it was not incompatible with productive capital formation.
Norway currently levies a combined municipal and state wealth tax of 1.0% on net wealth above about NOK 1.9 million (roughly $180,000), rising to 1.1% above about NOK 21.5 million (2026 figures; the split between the municipal and state shares changes from year to year). The rates and brackets were raised in 2022 and 2023.
The 2022 departures: The most prominent case was Kjell Inge Røkke, chairman and principal owner of Aker, who moved to Lugano, Switzerland, in 2022. Norwegian press reporting (Dagens Næringsliv) counted more than 30 billionaires and multimillionaires leaving in 2022, well above the usual handful per year. This is real and non-trivial.
Evidence on productive capital and employment: The pattern in the Norwegian case is consistent with the broader literature: owners relocated their tax residence, while the companies they control — Aker among them — remained listed and operating in Norway. Formal studies of the effect of the 2022 departures on Norwegian investment and employment are still emerging, and this note does not rely on any single estimate. [Research Priority — external validation required for a future version]
The Norwegian tax policy context: Norway’s wealth tax sits alongside a 22% corporate income tax, an income tax and a dividend tax, so Norwegian owners face several layers of capital taxation at once. NCOS differs sharply: its civic obligation replaces the corporate income tax, the capital gains tax, the income tax and the estate tax rather than adding to them. The relevant lesson from Norway is that a wealth tax layered on top of other capital taxes still produced mainly residence moves rather than business closures; under NCOS, where the obligation is the single charge on capital, the incentive to relocate is weaker.
Switzerland has maintained cantonal wealth taxes for well over a century. Rates vary by canton from approximately 0.1% to 0.8% of net assets. The Swiss wealth tax system is combined with income taxation and moderate corporate tax rates.
The Swiss non-flight case: Switzerland is the strongest counterexample to capital flight predictions. It maintains wealth taxation while simultaneously serving as a global capital hub, maintaining one of the world's highest concentrations of high-net-worth individuals, and generating strong productive investment. This is not a paradox; it reflects deliberate system design.
Brülhart, Gruber, Krapf, and Schmidheiny (2022, American Economic Journal: Economic Policy, "Behavioral Responses to Wealth Taxes: Evidence from Switzerland") is among the most rigorous empirical studies of wealth tax behavioral responses in the literature. Using Swiss cantonal tax variation as a natural experiment, they find:
The Swiss case demonstrates that wealth taxation is compatible with sustained productive investment and capital formation when the system is well-designed, rates are moderate, and institutional quality is high.
Spain's temporary Impuesto Temporal de Solidaridad de las Grandes Fortunas was introduced in late 2022 and applied rates of 1.7–3.5% on net wealth above €3 million. The tax was ruled constitutional by Spain's Constitutional Court in 2023.
Evidence: Too recent for definitive conclusions. Early commentary, including from business-aligned think tanks critical of the tax, has focused on tax planning and on regional differences (Madrid and Andalusia had offered relief under the regional wealth tax). We are not aware of evidence of systematic productive capital migration. [Research Priority — external validation required for a future version]
| Country | Individual Mobility | Financial Capital Mobility | Productive Capital Migration | Assessment |
|---|---|---|---|---|
| France (ISF) | Significant | Substantial | Not demonstrated | Primarily avoidance/individual response |
| Sweden | Some high-profile cases | Moderate | Not demonstrated | Consistent with productive stability |
| Norway (2022) | 30+ departures (2022) | Moderate | Not demonstrated | Concentrated among UHNWIs |
| Switzerland | Canton-level mobility | Moderate | Not demonstrated | Compatible with capital hub status |
| Spain (2022) | Regional arbitrage | Limited | Not demonstrated | Too early; no macro signal |
The academic literature on wealth tax behavioral responses has grown substantially in recent years, driven largely by increased access to administrative tax data. The findings are more nuanced — and more favorable to NCOS — than the popular capital flight discourse suggests.
The largest and most robust finding across all studies is that reported taxable wealth responds significantly to wealth taxes, but primarily through avoidance and restructuring rather than productive capital migration.
Zucman (2015, The Hidden Wealth of Nations) estimates that about 8% of global household financial wealth is held offshore, driven primarily by tax avoidance rather than productive relocation. The offshore wealth is held in financial accounts, not relocated factories. Related work in the literature reaches similar conclusions: the behavioral response is primarily financial restructuring.
Jakobsen, Jakobsen, Kleven, and Zucman (2020, Quarterly Journal of Economics, "Wealth Taxation and Wealth Accumulation: Theory and Evidence from Denmark") use Danish administrative data to study wealth responses to the Danish wealth tax (abolished 1997). Their central finding: the elasticity of wealth accumulation with respect to wealth taxation is significant, but the primary mechanism is reduced saving and financial restructuring among top-wealth households, not migration of productive assets.
Kopczuk (2019, Brookings Papers on Economic Activity, comment on Saez and Zucman) provides the most thorough review of wealth tax behavioral responses in the U.S. context. Kopczuk identifies avoidance, restructuring, and individual mobility as the primary behavioral channels, while noting that productive capital responses are harder to identify and likely smaller.
Kleven, Landais, Saez, and Schultz (2014, Quarterly Journal of Economics, "Migration and Wage Effects of Taxing Top Earners: Evidence from the Foreigners' Tax Scheme in Denmark") study the migration elasticity of high-income earners. They find significant but bounded individual mobility responses among top earners — concentrated at the extreme right tail of the income and wealth distribution. The implication is that individual tax flight is a real but quantitatively limited phenomenon.
Evidence from Switzerland more broadly indicates that wealthy households respond to tax differentials when choosing where to live within the country, while cross-border emigration in response to wealth taxes appears modest.
No major empirical study documents large-scale productive capital relocation in response to wealth taxes specifically. The literature that addresses productive capital responses to taxation more broadly — primarily in the context of corporate income taxes and capital gains taxes — generally finds that corporate investment is moderately responsive to after-tax returns, but the response is primarily through financial channels (dividend policy, share buybacks, debt structure) rather than physical relocation of productive assets.
Zucman, Tørsløv, and Wier (2018, NBER Working Paper, "The Missing Profits of Nations") document that $650 billion in corporate profits are shifted annually to tax havens. But profit shifting is a financial accounting mechanism, not productive capital relocation. The underlying productive assets remain where the workers, customers, and physical capital are located.
Intellectual property is the primary exception to the general pattern established in F1.1–F1.3. Unlike physical capital or financial accounts, IP has a characteristic that makes the equity/asset distinction partially collapse: legal ownership can meaningfully redirect economic rents without moving any physical asset.
When Apple licenses its brand and technology through an Irish subsidiary, no factory moves. But the taxable profit generated by U.S. consumers purchasing Apple products accrues to the Irish subsidiary. This is the fundamental IP problem, and it is the central vulnerability that NCOS must address.
IP derives its value from exploitation, not from physical presence. A patent, trademark, or software platform:
This is what makes IP uniquely threatening to any wealth tax regime. For most assets, third-party reporting to the NVL, backed by the financial inertness principle, is sufficient: if you don't register, your asset loses enforceability and collateral value in the U.S. system. But for IP, a sophisticated owner might calculate that offshore assignment is worth the loss of some U.S. enforceability — if the IP generates revenue globally and can be partially protected through non-U.S. courts.
NCOS addresses this through an architecture developed explicitly for IP: rather than relying on legal domicile or ownership registry alone, the system attaches NVL registration obligations through three independent nexus anchors, any one of which is sufficient to trigger the obligation:
Anchor 1 — Revenue Nexus: Any IP generating material U.S. revenue — above a calibrated threshold — must be registered in the NVL. Revenue nexus is measured at the level of U.S. receipts, including royalties, licensing fees, subscription revenues, platform income, and sales of products or services whose value depends substantially on the IP. The threshold (approximately $5 million in the initial design; subject to calibration in a future version) is set to capture economically significant exploitation without sweeping in trivial uses.
Anchor 2 — Operational Nexus: IP developed, maintained, or commercially exploited using U.S. resources — employees, research facilities, servers, distribution networks — attaches to the NVL. This anchor is particularly important for software and pharmaceutical IP, where substantial U.S. R&D investment is common even when the resulting IP is nominally assigned to offshore entities.
Anchor 3 — Market Access Conditioning: Access to U.S. legal infrastructure — court enforcement of IP rights, participation in U.S. financial markets, use of U.S.-regulated payment channels — is conditioned on NVL registration. An entity that seeks to enforce its IP rights in U.S. courts, or that routes IP-related payments through U.S.-regulated financial institutions, must register.
The three anchors are intentionally independent. Any one of them can be gamed in isolation. Together, they create a system that is substantially harder to evade without genuinely abandoning the U.S. market.
Registration obligations are triggered when any of the following conditions are met:
Where registration does not occur despite nexus being established, S17 withholding applies to covered payment flows: royalties, subscription revenues, platform payouts, and licensing income routed through U.S.-regulated channels. The withholding rate escalates with non-compliance duration:
This time-based schedule is a cure-window overlay on the S17 curve, which itself sets withholding as a continuous function of the registered fraction R. The cure window is intentionally short and the escalation is intentionally steep. The economic calculation must favor compliance over evasion.
Unregistered IP with established U.S. nexus becomes:
The asset still exists. But its practical value inside the largest IP market in the world is substantially degraded.
To prevent the use of multi-layer offshore structures to obscure IP ownership, the NVL applies mandatory look-through attribution in the following priority order:
Where no party registers despite established nexus, the system defaults to withholding at the counterparty level — the U.S.-based licensee, distributor, or platform — until a responsible party comes forward. This forces identification rather than waiting for voluntary disclosure.
IP valuation is not resolved perfectly. The system uses a hybrid approach:
The aim is not exactness. It is to prevent trivial manipulation of the valuation base while preserving a workable compliance regime for complex IP portfolios.
The most important legal precedent for the IP nexus architecture is the Foreign Account Tax Compliance Act (FATCA, 2010). FATCA established that:
The NCOS IP nexus architecture is the FATCA logic applied to intellectual property rather than financial accounts. The principle is identical: market access conditioning enforced through withholding, with compliance determined by registration rather than detection. FATCA's durability — enacted in 2010 and fully operational since 2014, with substantial global compliance — demonstrates that this approach is both legally viable and practically effective.
A potential legal challenge arises under the TRIPS Agreement (Agreement on Trade-Related Aspects of Intellectual Property Rights), which establishes minimum standards for IP protection among WTO members. Specifically, TRIPS Article 28 establishes the exclusive rights of patent holders, and Article 16 establishes trademark rights. A sophisticated legal opponent may argue that conditioning U.S. court enforcement on NVL registration violates TRIPS national treatment obligations (Article 3) or most-favored-nation obligations (Article 4).
The NCOS position is that:
NVL registration is a procedural compliance requirement, not a substantive restriction on IP rights. The analogy is to other domestic procedural requirements that courts routinely require for enforcement — USPTO registration as a prerequisite for statutory damages, copyright registration as a prerequisite for infringement litigation, domestic corporate registration requirements. TRIPS does not prohibit procedural registration requirements; it prohibits substantive discrimination in the scope of IP rights granted.
This argument is defensible but not guaranteed. Courts interpreting TRIPS in dispute settlement have sometimes taken expansive views of what constitutes a "limitation" on IP rights. The WTO/TRIPS question represents a litigable boundary, not settled law, and the paper should say so. The constitutional and international law development program for a future version should include dedicated analysis of TRIPS exposure with input from international trade law practitioners.
Residual risk is concentrated, not systemic. The assets that genuinely escape the architecture are either too early-stage to represent significant wealth or are genuinely decoupled from U.S. markets. Neither represents a threat to the system's fiscal integrity.
Corporate inversions — transactions in which a U.S. corporation redomiciles to a foreign jurisdiction, typically through merger with a smaller foreign entity — were a significant policy concern from roughly 2000 through 2016. Dozens of major U.S. corporations inverted or attempted to, including Medtronic, Burger King (with Tim Hortons) and Mylan; Pfizer and AbbVie announced inversions that were abandoned.
The economic driver of inversions was straightforward: the U.S. corporate income tax rate (35%) was among the highest in the developed world, and the U.S. worldwide taxation system meant that foreign earnings were subject to U.S. tax upon repatriation. Inversion allowed U.S. companies to access offshore cash without paying U.S. tax and to reduce effective rates on future foreign earnings.
Grubert and Altshuler (2013, National Tax Journal) document that the primary motivation for inversions was tax reduction on foreign earnings, not flight from U.S. productive activity. The post-inversion companies continued to operate substantially in the United States; the relocation was of the holding company structure, not the productive enterprise.
The Tax Cuts and Jobs Act (2017) reduced the corporate rate to 21%, introduced a territorial system for most foreign earnings, and added BEAT (Base Erosion and Anti-Abuse Tax) provisions that raised the cost of earnings stripping. Inversion activity declined sharply after 2017 and has remained subdued.
The TCJA experience is directly instructive for NCOS. It demonstrates that:
NCOS removes the federal corporate income tax for NCOS Qualified Entities; the tax remains only as a dormant statutory baseline under the Fallback Assessment Mechanism for entities that lose qualified status (Working Paper §2.4.1). This removes the primary historical driver of corporate inversions. A qualified U.S. corporation under NCOS has no federal corporate income tax liability regardless of its domicile; the civic obligation attaches to the net wealth of the beneficial owners rather than to the corporate entity. The economics of inversion disappear.
Residual inversion incentives under NCOS would be limited to:
None of these residuals represents a significant structural threat to NCOS's fiscal integrity. The paper can state with confidence that NCOS structurally reduces inversion incentives by eliminating their primary economic driver.
NCOS makes a claim, now stated in the working paper (§19.1a): that the net effect of NCOS on U.S. capital location is likely positive, not negative, because the taxes it eliminates are more harmful to productive investment than the wealth obligation it imposes.
Standard public finance theory holds that taxes on economic activity — income, capital gains, corporate profits — distort the decisions that generate that activity. A tax on wages reduces the incentive to work. A tax on capital gains reduces the incentive to realize and redeploy capital. A corporate income tax reduces the after-tax return on investment, discouraging marginal projects.
Taxes on wealth stocks, by contrast, do not directly penalize productive activity at the margin. A wealth tax creates an incentive to generate returns above the tax rate — not to reduce productive activity. At calibrated rates, the distortionary effect on marginal investment is smaller than for equivalent revenue from income or capital gains taxes.
The theoretical case is contested. Classic results (Atkinson and Stiglitz, 1976; Chamley, 1986; Judd, 1985) argue against taxing capital at all, and in those models a wealth tax is equivalent to a tax on capital income. More recent work with heterogeneous returns (for example Guvenen et al., 2023) finds that a wealth tax can be more efficient than a capital-income tax because it shifts the burden from high-return to low-return holders of capital. NCOS relies on this second line of argument: taxes on stocks bear less heavily on productive marginal investment than taxes on returns.
Under NCOS:
For a foreign investor or multinational considering where to locate productive investment, the United States under NCOS offers:
This is a dramatically more favorable environment for productive investment than the current U.S. system, and more favorable than most developed-world alternatives. Germany, France, and Japan all maintain corporate income taxes above 25%. The UK maintains a 25% corporate rate. The NCOS United States would be the only major economy with no federal corporate income tax on qualified entities (a dormant fallback remains under the FAM) — a structural advantage for productive capital attraction that substantially exceeds the wealth obligation imposed.
The net capital attraction argument holds when:
The argument weakens if:
At the reference calibration (October 2026). The reference ceiling Rmax = 10% is set at approximately the long-run nominal market return (S&P 500 post-war geometric return ≈ 9.9%). Combined S1 and S11 rates stay below that return up to about $69M of net wealth, so fortunes below that level that earn market returns continue to grow in nominal terms. In real terms (after roughly 2–3% inflation) the combined rate exceeds a 7% real return above roughly $2.8M, so passively held fortunes above that level decline slowly in real terms unless deployed productively — the Return Imperative is deliberately strong at the reference calibration. The net capital attraction argument therefore holds most clearly for the location of productive investment, where the eliminated corporate income and capital gains taxes dominate, and for households below the upper tail. For very large passive fortunes the individual-mobility channel documented in F1.2 is correspondingly more important, and the S7 exit settlement, NVL completeness and S17 withholding (ceiling 30–40%) carry more weight. The calibration is a democratic choice under the Sigma Mandate; a lower Rmax strengthens the attraction argument at the cost of a lower inflection or a deficit.
Capital flight is the most frequently raised objection to any wealth-based fiscal system and must be addressed directly and honestly. The concern is legitimate. Wealthy individuals and entities do respond to tax changes by restructuring their affairs. The question is what form that response takes and whether NCOS is designed to address it.
The critical distinction — one that is often left implicit in policy debates — is between the migration of ownership claims and the migration of underlying productive assets. These are not the same, either economically or legally, and the distinction determines everything about how seriously the objection should be taken.
The empirical record from jurisdictions that have implemented wealth taxes is consistent across countries and decades: wealth taxes induce mobility of financial claims and high-net-worth individuals; they do not, in general, induce large-scale relocation of productive systems. Real estate cannot move. Operating businesses depend on labor forces, infrastructure, and customers that cannot be easily replicated elsewhere. Financial accounts, while legally mobile, remain dependent on institutional and legal frameworks that carry their own location dependencies.
For France's ISF, Sweden's wealth tax, Norway's current system, and Switzerland's long-standing cantonal regime, the documented behavioral response is avoidance through restructuring and individual relocation — not migration of factories, employment systems, or productive enterprises. The academic literature supports this pattern. Brülhart, Gruber, Krapf, and Schmidheiny's rigorous study of Swiss cantonal wealth tax variation finds significant avoidance elasticity but limited productive capital responses. Jakobsen, Jakobsen, Kleven, and Zucman's study of the Danish wealth tax finds similar patterns.
The primary exception is intellectual property. Unlike physical capital, IP can be legally assigned to any jurisdiction in the world without moving any physical asset, redirecting economic rents generated by U.S. consumers to offshore entities. This is the mechanism behind decades of profit shifting by technology, pharmaceutical, and media companies. It is the hard case, and NCOS addresses it directly.
NCOS applies a three-anchor nexus architecture to intellectual property: revenue nexus (IP generating material U.S. revenue must register), operational nexus (IP developed or maintained using U.S. resources attaches to the NVL), and market access conditioning (IP seeking enforcement in U.S. courts or payments through U.S. financial channels must comply). These three anchors are independent; any one is sufficient to trigger registration. Where registration does not occur, S17 withholding applies to covered payment flows, and unregistered IP becomes unenforceable in U.S. courts, ineligible as regulated collateral, and impaired in U.S. capital markets transactions.
This architecture has strong precedent. The Foreign Account Tax Compliance Act (FATCA, 2010) established that access to U.S. financial markets can be conditioned on compliance with U.S. reporting requirements, including for foreign institutions. FATCA operates through the same mechanism: market access conditioning enforced through withholding. Its durability since enactment in 2010 (fully operational since 2014) demonstrates that this approach is legally viable and practically effective. The NCOS IP nexus architecture extends this logic from financial accounts to intellectual property.
There are assets that this architecture cannot fully capture: genuinely decentralized digital assets with no central owner, early-stage IP with no current revenue, and IP generating value entirely outside U.S. markets. These are identified as development priorities for a future version. Residual risk is concentrated in these defined categories — it is not systemic.
At the same time, NCOS changes the economic calculus of capital location in a direction the working paper now states plainly (§19.1a). By eliminating federal corporate income tax, capital gains tax, and income tax on wages, NCOS makes the United States a dramatically more attractive location for productive investment. For a foreign investor or multinational deciding where to build, hire, and invest, a United States with no federal corporate income tax for NCOS Qualified Entities and no capital gains tax is more attractive than the current system — even accounting for the wealth obligation that applies to accumulated stock. The taxes NCOS eliminates are the ones that directly penalize productive investment at the margin. The obligation it imposes falls on accumulated wealth stock, not on marginal returns to investment. The net effect on productive capital location is likely positive.
The appropriate conclusion is not that capital flight disappears under NCOS, but that its form changes. The system is structurally resilient for most forms of productive capital. Equity claim migration and individual mobility are real and bounded. IP flight is addressed architecturally. Corporate inversions lose their primary economic driver. The residual risks are known, concentrated, and targeted by the development program for a future version.
After full development of the structural defenses described in this note, the capital flight objection to NCOS is no longer a fatal flaw. It is a material but manageable risk, with the following honest assessment:
The broad productive capital flight argument: The empirical record does not support claims that wealth taxes cause large-scale productive capital migration. NCOS's NVL architecture and IP nexus framework substantially close the gap between the general theoretical concern and the realistic behavioral response.
Equity claim migration: The financial inertness principle — unregistered assets lose enforceability and collateral value in the U.S. system — means that equity claim migration without NVL registration has severe practical consequences. At the reference calibration, however, inertness alone does not outweigh the S1 saving above roughly $1M of wealth (Technical Note E1). The first line of enforcement is third-party reporting to the NVL by land registries, custodians, brokers, lenders and corporate registries; inertness, S17 withholding, the S7 exit settlement and penalties bound the mobile remainder.
Corporate inversions: Eliminated as a significant threat by removing the corporate income tax that drove them.
Offshore financial capital: Addressed by S17 and the international triad. Not fully solved, but bounded by the existing architecture plus FATCA-style enforcement.
IP mobility for offshore-focused businesses: Businesses that generate primarily non-U.S. revenue from U.S.-developed IP can, with sufficient structuring effort, partially escape the IP nexus architecture. The residual risk is real but concentrated.
Decentralized digital assets: Genuinely decentralized systems without identifiable owners or counterparties remain outside the reach of the current architecture. Development in a future version is needed.
The market access conditioning dependency: The IP nexus architecture and S17 enforcement both ultimately depend on the United States' willingness to condition market access on compliance. This is not a design flaw — it is a political economy condition. If the United States enforces this conditioning consistently, the system works as designed. If enforcement is inconsistent or politically compromised, avoidance re-emerges quickly. The paper should be explicit about this dependency: there is no stable middle ground between credible enforcement and systemic avoidance.
Moderate, concentrated, and identifiable. This is not a ringing endorsement of perfection, but it is substantially better than the current system — which has no structural defenses against offshore profit shifting, IP flight, or financial account migration at all.
The paper should state plainly:
That level of honesty — specific, calibrated, and neither dismissive nor catastrophizing — is what strengthens the paper's credibility rather than undermining it.
Technical Note F1 — NCOS Working Paper v1.0 companion document
Fiscal Resilience Series · Cross-reference: Working Paper §19.1, §19.1a, §2.3 (S&P 500 Anchor); Technical Note E1
Technical Note F2 (Corporate Inversions — Extended Treatment) is available as a follow-on if F1.5 requires further development in a future version.
ncos.world · November 2026